3.2 Cell Organelles

Eukaryotic Cell: Organelles pg. 73-79

• Determine the main function of the 12 major organelles in eukaryotic cells• Cell membrane• Cytoskeleton• Nucleus• Endoplasmic Reticulum (Smooth and Rough)• Golgi Apparatus• Vesicles• Mitochondria• Vacuole• Lysosomes (animal)• Centrioles (animal)• Cell Wall (plant)• Chloroplasts (plant) Notes on pg. 26 of INB

3.2 Cell Organelles

Eukaryotic Cell: Organelles pg. 73-79

1. Determine whether you are going to make a plant or animal cell

2. Draw the outline of your cell on your poster 3. Out of construction paper- construct organelles

(using a different color for each type of organelle)

4. Label each organelle5. Write the function of each type of organelle

3.2 Cell Organelles

Mitochondria

• Convert molecules from the food you eat into usable energy

• Powerhouse of the cell

Rough E.R.

Example

3.2 Cell OrganellesSponge: Set up Cornell Notes on pg. 27

Topic: 3.2 Cell Organelles

Essential Question:

Compare: What similarities do mitochondria and chloroplasts share?

2.1 Atoms, Ions, and Molecules

Compare: What similarities do mitochondria and chloroplasts share?

3.2 Cell Organelles

Key Concept: Eukaryotic Cells share many similarities

3.2 Cell Organelles

KEY CONCEPT Eukaryotic cells share many similarities.

Plant Cell Animal Cell

Can you find some similarities????

3.2 Cell Organelles

Main Ideas• Cells have an internal structure• Several organelles are involved in making and processing

proteins• Other organelles have various functions• Plant cells have cell walls and chloroplasts

STANDARDS• 1.e Students know that usable energy is captured from sunlight by

chloroplasts and is stored through the synthesis of sugar from carbon dioxide

• 1.g Students know the role of the mitochondria in making stored chemical-bond energy available to cells by completing the breakdown of glucose to carbon dioxide

• 1.j Students know how eukaryotic cells are given shape and internal organization by a cytoskeleton or cell wall or both

3.2 Cell Organelles

Like your body, eukaryotic cells are highly organized structures.

3.2 Cell Organelles

•Skin:

• Receives sensory information (touch)

• Protects

•Intestines:

• Digest food

•Kidneys:

• Filter waste

•Bones:

• Protect and support other organs

3.2 Cell Organelles

The Living Cell Video

3.2 Cell Organelles

•Cell membrane:

• Separates interior material from outside environment

• Selectively permeable (only certain things can move in and out)

How can we compare the cell membrane to our skin?

3.2 Cell Organelles

• The cytoskeleton is made of small protein subunits that form long threads, or fibers, that crisscross the ENTIRE cell.

3.2 Cell Organelles

– provides strength, shape, and support– helps position and transport organelles

– assists in cell division

How can we compare the Cytoskeleton to our human Skeleton?

3.2 Cell Organelles

• *The nucleus stores and protects genetic information or DNA (deoxyribonucleic acid).

– Contains instructions to make proteins

3.2 Cell Organelles

Nucleus Video

3.2 Cell Organelles

There are two types of endoplasmic reticulum.

–* Rough endoplasmic reticulum

– Have bumps called ribosomes which link amino acids together to form proteins

–protein synthesis occurs here

3.2 Cell Organelles

–* Smooth endoplasmic reticulum

Makes lipids

3.2 Cell Organelles

* Golgi apparatus- processes, sorts, and delivers proteins to different parts of the cell

Ex: like a post office

3.2 Cell Organelles

• Vesicles transport materials from place to place within the cell

Ex: Mailman/UPS

3.2 Cell Organelles

• * Mitochondria supply energy to the cell.

– convert the molecules you eat into usable energy– Where cellular respiration occurs

3.2 Cell Organelles

Centrioles help divide DNA between splitting animal cells (mitosis and meiosis)

*only in animal cells

3.2 Cell Organelles

• Vacuoles are fluid-filled sacs that hold materials needed by the cell (water, food molecules, ions, and enzymes)

Animal cell Plant cell

3.2 Cell Organelles

• Lysosomes contain enzymes. – They They defend the cell from invading bacteria and defend the cell from invading bacteria and

virusesviruses– Break down damaged or worn out cell parts

3.2 Cell Organelles

• A cell wall gives shape to the cell and provides protection– support the entire organism.support the entire organism.

*Only in plants

3.2 Cell Organelles

• * Chloroplasts convert solar energy to chemical energy. They carry out photosynthesis

*Only in plants

3.2 Cell Organelles

Animal Vs. Plant Eukaryotic Cells Video (3 videos)Bottom ½ of pg. 26

Plant Cells Animal Cells